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Finding the Fourth Proportional to 476,768.13, 715,777.25 and 319,699.41

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Solution

The fourth proportional to 476,768.13, 715,777.25 and 319,699.41 is: 479,968.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,768.13 : 715,777.25 = 319,699.41 : x
  2. Step 2: Convert to fraction form
    476,768.13/715,777.25 = 319,699.41/x
  3. Step 3: Cross multiply
    476,768.13x = 715,777.25 × 319,699.41
  4. Step 4: Simplify right side
    476,768.13x = 228,833,562,917.93
  5. Step 5: Solve for x
    x = 228,833,562,917.93/476,768.13
  6. Step 6: Final answer
    x = 479,968.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.